|Webber talks to Alonso while waiting out the fog|
Fog in Austin, Texas has delayed the start of practice for the USGP, but cars are now on track 9:40 Central time). The session has been shortened to 60 minutes.
American Alexander Rossi is on track with the backmarker Caterham team helping to clean the track of dust for the faster afternoon session.
At the 10 min mark the red flags were out due to problems with the medical helicopter.